So far as what is best for the puppy the more activity the better as long as the puppy is eating well. Trying to force rest is not often successful and when extended cage time is necessary it can lead to some behavioral problems that are best avoided. Levels of high activity just prior to a necessary nap time can help.
Creating a pattern to feeding times is a much better plan. At your puppy's age probably three feedings daily with the last one at least one hour before your bedtime would be good. Trips to the designated potty area should be immediately after eating and also each hour or so in between meals.
Establishing a repeatable schedule for pottty training is difficult prior to 12 weeks of age because the puppy does not develop the ability to postpone elimination until about 12 weeks.